Outrigger oar-lock



(No Model.) O. B. ELLIOTT.

OUTRIGGER OARLOGK.

Patented Jan. 2, 1883.

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Unwrap STATES PATENT @rrrca.

CHARLES B. ELLIOTT, OF GREEN POINT, NEW YORK.

OUTRIGGER OAR-LOCK.

SPECIFICATION forming part of Letters Patent No. 269,924, dated January 2, 1883.

Application filed May 16, 1882.v (No model.) I

To all whom t't may concern:

Be it known that I, CHARLES B. ELLIOTT, of Green Point, Kings county, and State of New York, have invented certain new and useful Improvements in Oar-Motions, of which the following is aspecification.

This invention relates to means designed to facilitate the propulsion of racing and pleasure bouts by making use of the muscles of the legs in addition to those of the arms, so as to get a longer and more powerful stroke with less effort; and the invention consists in certain improvements hereinafter set forth and claimed.

In the accompanying drawings, Figure 1 represents a perspective view of my improved oar-motion, shown as applied to a racing-shell. Fig. 2 is a plan viewof the same on a larger scale; and Fig. 3 is a vertical transverse section through the shell and my improved oarmotion on line :20 m, Fig. 2.

Similar letters of reierence indicate corresponding parts.

Referring to the drawings, A represents a pleasure-boat or racing-shell of any approved construction, and B the combing arranged at 1 each side at the middle part of'the boat or shell; and I J are the Outriggers, which extend from the combing B and are supported by the inclined side timbers of the boat. The outriggers IJat each side of the boat or shell support a horizontal skeleton platform, G, which consists of two radially-braced segments having'a common center,butdifierentradii,theinnerone being of larger radius than the outer. The segments of each skeleton platform G are stifi cued by outer braces, gg, and radial braces g, and are secured to the outer ends and at intermediate points of the Outriggers I J, as shown clearly in Fig. 2. The radial braces g, as well as the outer braces, g, which connect the ends of the segments, serve for the purpose of imparting the required strength to the platform G and to give a rigid support for the fulcrum II of an elbow-lever, F, said fulcrum being arranged at the center of the segments. The elbow-lever F is provided at both ends with iinwardly-projecting guide-lugs f, whereby it is steadily guided on the segments of the skeleton platform G. The outer end of the elbow-lever F is provided with a fixed vertical spindle, f, to which a fixed or oscillating oarlock, K, of any approved construction, is applied. The inner end of the elbow-lever F is connected byaconnecting-rod,E, with bracketarms D, secured to a seat. 0, that slides on ways a a of the boat or shell A.

In place of the connecting-rod E, which is pivoted to the inner end of the elbow-lever F and the bracket-arms D of the seat G, a wire rope or any other equivalent connection may be used. y

The sliding motion is impartedto the seat 0 by the legs of the oa-rsman, who rests his feet against a stretcher, B, in the customary manner in boats or shells having sliding seats, as shown in Fig. 2.

In making the stroke the seat is first moved back by the action of the legs of the oarsman simultaneously with the lowering of the oars, whereby the catching of the oars in the water is produced. By the backward motion of the seat an oscillating motion is imparted at the same time by the connecting-rods and elbowlevers to the oar-locks supported on the skeleton platforms, so that the oar-locks are moved through arcs of a circle before the action of the arms on the oars can take place. The result is, consequently, that the greater part of the motion of the oars is imparted thereto by the muscles of the legs and the remaining part by the motion of the arms, which complete the stroke and then return the oars for the next stroke.

The sweep of the oars is considerably eularged by the motion of the oar-locks as compared to the'present sweep, which is about nine feet, while actual tests have demonstrated that by the movable car looks the sweep of the oars is enlarged to eleven and one-half to twelve feet. As this is gained without any extra exertion of the muscles of the arms, but mainly eflected by the muscles of the legs, which are so much stronger, it is evident that the power of the oars is considerably increased, and con sequently speed gained.

Having thus described my invent-ion, I claim as new and desire to secure by Letters Patent- 1. The combination, with a boator shell, of a slidingseat, Outriggers, supporting-platforms having arc-shaped inner and outer sides, bent levers pivoted to said platforms and provided at their outer ends with oar-locks and at their 3. In an oar-motion, the combination, with inner and outer ends with lugs which traverse the Outriggers I J, of a skeleton platform, G, the arcs o the platforms, and rods or chains supported thereon, said platform being formed eonnl-et ngz the levers and seat, substantially of segments of ditferentradii stiflened by outer as described. and radial braces, g g, substantially as speci- 2. The combination of aboat 0r shell, A, havfied.

iug a sliding seat, (J, combings B B, and out- In testimony that I claim the foregoing as ringers I J, with skeleton platforms G G, sup my invention I have signed my name in pres ported by the Outriggers, elbow-levers F, fulence of two subscribing witnesses. crnined to and guided on the platforms, oarlocks K, supported on the outer ends of the CHAS ELLIOTL elbow-levers, and pivot rods E, that connect the inner ends of the elbow-levers F with the 1 seat C, substantially as specified.

Witnesses PAUL GoEPEL, I. B. ELLIo'r'r. 

